Modern obstetrician Shen Yulou unexpectedly travels back in time. Because his sister-in-law refused to give her child to the Imperial Concubine as a medicinal ingredient, they are both sentenced to death. Just then, the imperial court issues a recruitment notice: those who can help the Imperial Concubine, who is lacking milk, will be pardoned and promoted. Shen Yulou uses his professional skills to accept the offer and survive his desperate situation. After entering the palace, he uses modern gynecological treatments to save the son of a general and uses folk remedies to help the Imperial Concubine produce milk. With his superb medical skills, he resolves multiple crises and gradually establishes himself in the palace. He navigates the power struggles between the Empress, the Imperial Concubine, and Consort Qing, solves the mystery of the prince's murder, saves the Princess of Yan and her child through a cesarean section, and thwarts palace conspiracies with his wisdom. From a death row inmate to the head of the Wet Nurse Department, and then to a trusted minister relied upon by the emperor, Shen Yulou uses his modern medical knowledge to treat the sick and save lives, accumulates power, and rescues his family. Ultimately, he gains immense power in the harem, wins the hearts of many women, and begins his life's reversal.